Download or read book Laser Chemical Elemental Analysis written by Marco A.Z. Arruda and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book chapter focuses on laser ablation employed in elemental analysis and discusses the fundamentals and instrumentation of the laser-induced breakdown spectroscopy (LIBS) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) techniques. The analytical performance of such techniques, challenges related to calibration, and strategies to improve sensitivity are discussed. In addition, the processes involved in data acquisition and imaging for acquiring the elemental spatial distribution are highlighted, and some representative examples in environmental, biological, medical, and forensic researches are presented.
Download or read book The Analytical Chemistry Branch Laser Microprobe Facility for the Elemental Analysis of Small Features of a Sample written by and published by . This book was released on 1969 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Induced Breakdown Spectroscopy written by Sergio Musazzi and published by Springer. This book was released on 2014-07-08 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the Laser-Induced Breakdown Spectroscopy (LIBS) a widely used atomic emission spectroscopy technique for elemental analysis of materials. It is based on the use of a high-power, short pulse laser excitation. The book is divided into two main sections: the first one concerning theoretical aspects of the technique, the second one describing the state of the art in applications of the technique in different scientific/technological areas. Numerous examples of state of the art applications provide the readers an almost complete scenario of the LIBS technique. The LIBS theoretical aspects are reviewed. The book helps the readers who are less familiar with the technique to understand the basic principles. Numerous examples of state of the art applications give an almost complete scenario of the LIBS technique potentiality. These examples of applications may have a strong impact on future industrial utilization. The authors made important contributions to the development of this field.
Download or read book Elemental Analysis written by Gerhard Schlemmer and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-08-05 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elemental Analysis is an excellent guide introducing cutting-edge methods for the qualitative and quantitative analysis of elements. Each chapter of the book gives an overview of a certain technique, such as AAS, AFS, ICP-OES, MIP-OES, ICP-MS and XRF. Readers will benefit from a balanced combination of theoretical basics, operational principles of instruments and their practical applications.
Download or read book Application of Laser induced Breakdown Spectroscopy LIBS for Quantitative Elemental Analysis as an Add on to the Lab at Rig System written by Steven Tassios and published by . This book was released on 2018 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: “The Lab-at-RigÒ (LARÒ) system was developed and a prototype built within the framework of the Opportunity Fund Lab-at-RigÒ version 1 Project. The product was commercialised to Imdex, and a commercial product is now being developed by REFLEX (Imdex Group). The first version of the LARÒ system will deliver combined chemistry and mineralogy based on portable X-ray Fluorescence (pXRF) and quantitative X-ray Diffraction (QXRD). The scope of Module 2 of the LAR Futures Project was to explore laser-induced breakdown spectroscopy (LIBS) as an additional sensor for future versions of the LARÒ system, as well as to develop and deploy workflows to obtain high quality LIBS data customised to meet LARÒ applications in exploration and mining. LIBS can yield information on elemental composition including essential light elements not currently measured by air-based pXRF detectors (e.g., H, Be, Li, C, N, Na, and Mg at low levels). This technique can greatly complement LARÒ system version 1 in delivering light element concentrations and having the potential to analyse for some trace elements problematic for pXRF such as Au, PGEs, and REEs. A 3-year long research program was undertaken to evaluate LIBS as an analytical technique for analysis of geological materials. We also undertook the development of a custom-built software, GeoLIBS®, for processing of the LIBS data and quantification of the results"--Executive summary.
Download or read book Elemental analysis using high intensity laser post ionisation written by John Christopher Caulfield and published by . This book was released on 2005 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remote Compositional Analysis written by Janice L. Bishop and published by Cambridge University Press. This book was released on 2019-11-28 with total page 655 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive overview of the spectroscopic, mineralogical, and geochemical techniques used in planetary remote sensing.
Download or read book Laser Induced Breakdown Spectroscopy written by and published by . This book was released on 2015 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser induced Breakdown Spectroscopy LIBS written by Andrzej W. Miziolek and published by . This book was released on 2014-05-14 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first comprehensive reference explaining the fundamentals of the LIBS phenomenon, its history and its fascinating applications across eighteen chapters written by recognized leaders in the field. This book will be of significant interest to researchers in chemical and materials analysis within academia and industry.
Download or read book An Approach to Use Laser Induced Breakdown Spectroscopy for Elemental Analysis of Serum written by Kishore Singirikonda and published by . This book was released on 2007 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Laser Induced Breakdown Spectroscopy written by David A. Cremers and published by John Wiley & Sons. This book was released on 2013-03-15 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Starting from fundamentals and moving through a thorough discussion of equipment, methods, and techniques, the Handbook of Laser-Induced Breakdown Spectroscopy provides a unique reference source that will be of value for many years to come for this important new analysis method. The authors, with a total of over 60 years of experience in the LIBS method, use a combination of tutorial discussions ranging from basic principles up to more advanced descriptions along with extensive figures and photographs to clearly explain topics addressed in the text. In this second edition, chapters on the use of statistical analysis and advances in detection of weapons of mass destruction have been added. Tables of data related to analysis with LIBS have been updated. The Handbook of Laser-Induced Breakdown Spectroscopy, Second Edition: provides a thorough but understandable discussion of the basic principles of the method based on atomic emission spectroscopy, including recently available data leading to better characterization of the LIBS plasma; presents a discussion of the many advantages of the method along with limitations, to provide the reader a balanced overview of capabilities of the method; describes LIBS instrumentation ranging from basic set-ups to more advanced configurations; presents a comprehensive discussion of the different types of components (laser, spectrometers, detectors) that can be used for LIBS apparatuses along with suggestions for their use, as well as an up-to-date treatment of the newest advances and capabilities of LIBS instruments; presents the analytical capabilities of the method in terms of detection limits, accuracy, and precision of measurements for a variety of different sample types; discusses methods of sampling different media such as gases, liquids, and solids; presents an overview of some real-world applications of the method, with new emphasis on sampling of biologically and physically dangerous materials; provides an up-to-date list of references to LIBS literature along with the latest detection limits and a unique list of element detection limits using a uniform analysis method; provides annotated examples of LIBS spectra which can serve as references for the general reader and will be especially useful for those starting out in the field.
Download or read book Laser induced Plasma Spectroscopy written by and published by . This book was released on 1997 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser induced Breakdown Spectroscopy written by Hervé Keng-né Sanghapi and published by . This book was released on 2017 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Under high irradiation, a fourth state of matter named plasma can be obtained. Plasmas emit electromagnetic radiation that can be recorded in the form of spectra for spectroscopic elemental analysis. With the advent of lasers in the 1960s, spectroscopists realized that lasers could be used simultaneously as a source of energy and excitation to create plasmas. The use of a laser to ignite a plasma subsequently led to laser-induced breakdown spectroscopy (LIBS), an optical emission spectroscopy capable of analyzing samples in various states (solids, liquids, gases) with minimal sample preparation, rapid feedback, and endowed with in situ capability. In this dissertation, studies of LIBS for multi-elemental analysis and geological applications are reported. LIBS was applied to cosmetic powders for elemental analysis, screening and classification based on the raw material used. Principal component analysis (PCA) and internal standardization were used. The intensity ratios of Mg/Si and Fe/Si observed in talcum powder show that these two ratios could be used as indicators of the potential presence of asbestos. The feasibility of LIBS for the analysis of gasification slags was investigated and results compared with those of inductively-coupled plasma−optical emission spectrometry (ICP-OES). The limits of detection for Al, Ca, Fe, Si and V were determined. The matrix effect was studied using an internal standard and PLS-R. Apart from V, prediction results were closed to those of ICP-OES with accuracy within 10%. Elemental characterization of outcrop geological samples from the Marcellus Shale Formation was also carried out. The matrix effect was substantially reduced. The limits of detection obtained for Si, Al, Ti, Mg, Ca and C were determined. The relative errors of LIBS measurements are in the range of 1.7 to 12.6%. Gate delay and laser pulse energy, have been investigated in view of quantitative analysis of variation of trace elements in a high-pressure environment. Optimization of these parameters permits obtaining underwater plasma emission of calcium with quantitative results on the order of 30 ppm within a certain limit of increased pressure. Monitoring the variation of the trace elements can predict changes in the chemical composition in carbon sequestration reservoir.
Download or read book Laser Induced Breakdown Spectroscopy in Biological Forensic and Materials Sciences written by Gábor Galbács and published by Springer Nature. This book was released on 2022-12-13 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive overview of recent advances in the area of laser-induced breakdown spectroscopy (LIBS), focusing on its application to biological, forensic and materials sciences. LIBS, which was previously mainly used by physicists, chemists and in the industry, has now become a very useful tool with great potential in these other fields as well. LIBS has a unique set of characteristics including minimal destructiveness, remote sensing capabilities, potential portability, extremely high information content, trace analytical sensitivity and high throughput. With its content divided into two main parts, this book provides not only an introduction to the analytical capabilities and methodology, but also an overview of the results of recent applications in the above fields. The application-oriented, multidisciplinary approach of this work is also reflected in the diversity of the expert contributors. Given its breadth, this book will appeal to students, researchers and professionals interested in solving analytical/diagnostic/material characterization tasks with the application of LIBS.
Download or read book Laser Induced Breakdown Spectrocscopy for Elemental Analysis in Aqueous Media written by C. Peel and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis is based on extensive experimental work over a three year Ph. D. studentship program sponsored by the AWE on laser induced breakdown spectroscopy (LIBS) for elemental analysis in the water environment. An exhaustive up-to-date literature review has revealed widely different results on the dependence of some of the LIBS parameters on both laser and target parameters. In this research, parametric measurements of the laser-water interaction events were undertaken to validate some quoted values and to attempt to resolve discrepancies within the published results. Analysis of dielectric breakdown in water bulk by focussed laser beam has shown that the threshold laser pulse energy for this was approximately 60% lower in tap water than in distilled water due to impurity content of the former. However, the effect of analyte concentration was found to be much less drastic, giving only a 10% reduction for 2 orders of magnitude of concentration increase of dissolved sodium. Parameters of cavitation bubbles, resulting from the laser induced breakdown process in the water bulk, were measured using two different techniques i.e. probe beam deflection (PBD) and high speed imaging (HSI). Values of bubble diameter before collapse (maximum) and the frequency of the oscillation were found to be different, by 27% for the diameter and by 22% for the frequency, in the results obtained using the two different techniques. The values of the parameters obtained in this study and those found in the literature vary widely and do not show any trend on their dependence with laser pulse energy. It is concluded that large uncertainty in the estimation or control of sampled volume defined by the waist of the laser beam focus render large errors on such measurements. The present work includes parametric measurement of signal-to-noise ratio (S/N) for the detection of signals from analytes dissolved in water for different variable experimental parameters. Optimum values for achieving maximum S/N were obtained. In addition to the spectral and temporal filtering for improving S/N, mechanical filtering techniques were also investigated. This has resulted in the improvement of S/N by more than 25%. The thesis concludes with remarks, based on the analysis of the experimental data, on work for further improvement of sensitivity of the LIBS technique and its wider application as a portable device for in situ, real time point monitoring of elemental contaminants in water.
Download or read book Resonance enhanced Laser induced Plasma Spectroscopy for Elemental Analysis written by Sui Yan Chan and published by . This book was released on 1999 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Induced Breakdown Spectroscopy for Elemental Process Monitoring of Slurry Streams written by James Dudley Winefordner and published by . This book was released on 2000 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: The goal of this research program was to develop the method of laser-induced breakdown spectroscopy (LIBS) for applications in the phosphate industry. This would include rapid elemental analysis for P, Mg, Si and Fe in materials at various stages of phosphate mining and processing, using off-line, at-line and on-line measurement approaches. Several experimental systems were developed and evaluated. A research instrument with a high resolution spectrometer and gated, intensified CCD detector was used for initial fundamental studies.
